Mathematics, 31.10.2020 05:30 nia3378

Grace travels in an airplane a distance of 3480 km. For one-fourth of the distance, the airplane flies at a speed of 960 km/h, and for the rest of the distance, it flies at a speed of 680 km/h. How long does the trip take?

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Grace travels in an airplane a distance of 3480 km. For one-fourth of the distance, the airplane fli...

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